Finding the Fourth Proportional to 65,069.82, 89,870.16 and 43,812.18

Step by Step Solution

1. Step 1: Write the proportion equation
   65,069.82 : 89,870.16 = 43,812.18 : x
2. Step 2: Convert to fraction form
   65,069.82/89,870.16 = 43,812.18/x
3. Step 3: Cross multiply
   65,069.82x = 89,870.16 × 43,812.18
4. Step 4: Simplify right side
   65,069.82x = 3,937,407,626.55
5. Step 5: Solve for x
   x = 3,937,407,626.55/65,069.82
6. Step 6: Final answer
   x = 60,510.50